Hitachi Zaxis 850LC-3 Operator's Manual page 262

Draining Procedures (Pre-Filter)
1. Place 0.5 liters (0.5 US qt) or larger capacity container un-
der drain plug (5) to collect the drained water.
2. Shut off the fuel supply by closing cock on the bottom of
the fuel tank.
3. Loosen plug (4) on the top of the fuel pre-filter.
4. Rotate drain plug (5) counterclockwise to completely
drain water.
5. After draining water, securely tighten drain plug (5) and
plug (4). Return fuel cock to the original position.
6. Start the engine. Check drain plug (5) and plug (4) for fuel
leaks.
NOTE: After draining water mixed in fuel, bleed air from the
fuel supply system.
Wrench size: 14 mm
MAINTENANCE
Pre-Filter
7-50
M1JB-07-040
4
M1U1-07-004
5
M1U1-07-005